Quantumsphere Acquisition - Units Stock Price History

NASDAQ: QUMSUFinancial ServicesShell CompaniesUSD

10.380.00 (0.00%)

At close: Sep 10, 4:00 PM ET · Delayed 15 min

QUMSU price history at a glance

The price history for Quantumsphere Acquisition - Units (QUMSU) on this page begins on August 4, 2025, when the stock closed at $10.04; it most recently closed at $10.38 on October 5, 2026. The highest price in this record is $10.99, reached on June 8, 2026; the latest close is 5.6% below that peak. In the last 12 months alone, QUMSU has gained 2.0%.

Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.

Summary generated from market data by MetaCap's automated system. Methodology

Key price levels

High since 2025: $10.99
Date of high: Jun 8, 2026
Low since 2025: $10.02
Date of low: Aug 4, 2025
52-week high: $10.99
52-week low: $10.10
Last close: $10.38

QUMSU returns

1 week

0.00%

1 month

+0.48%

3 months

-0.34%

6 months

+0.58%

Year to date

+1.96%

1 year

+1.96%

QUMSU price return, excluding dividends.

QUMSU annual returns

Calendar-year price returns
Year	First close	Year-end close	High	Low	Return
2026	10.20	10.38	10.99	10.10	+1.96%
2025*	10.04	10.18	10.27	10.02	+1.38%

* Partial year: the record begins after the start of 2025; return measured from the first available close.

2026 return is year to date.

QUMSU daily prices (past year)

Daily open, high, low, close and volume
Date	Open	High	Low	Close	Change	Volume
Oct 7, 2026	10.38	10.38	10.38	10.38	0.00%	0
Oct 6, 2026	10.38	10.38	10.38	10.38	0.00%	0
Oct 5, 2026	10.38	10.38	10.38	10.38	0.00%	0
Oct 2, 2026	10.38	10.38	10.38	10.38	0.00%	0
Oct 1, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 30, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 29, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 28, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 25, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 24, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 23, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 22, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 21, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 18, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 17, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 16, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 15, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 14, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 11, 2026	10.38	10.38	10.38	10.38	0.00%	0
Sep 10, 2026	10.38	10.38	10.38	10.38	+0.48%	3.60K
Sep 9, 2026	10.33	10.33	10.33	10.33	0.00%	0
Sep 8, 2026	10.33	10.33	10.33	10.33	0.00%	0
Sep 4, 2026	10.33	10.33	10.33	10.33	0.00%	0
Sep 3, 2026	10.33	10.33	10.33	10.33	0.00%	0
Sep 2, 2026	10.33	10.33	10.33	10.33	0.00%	0
Sep 1, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 31, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 28, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 27, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 26, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 25, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 24, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 21, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 20, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 19, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 18, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 17, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 14, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 13, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 12, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 11, 2026	10.33	10.33	10.33	10.33	0.00%	200
Aug 10, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 7, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 6, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 5, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 4, 2026	10.33	10.33	10.33	10.33	0.00%	0
Aug 3, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jul 31, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jul 30, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jul 29, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jul 28, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jul 27, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jul 24, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jul 23, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jul 22, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jul 21, 2026	10.36	10.36	10.33	10.33	-0.82%	800
Jul 20, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 17, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 16, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 15, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 14, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 13, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 10, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 9, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 8, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 7, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 6, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 2, 2026	10.42	10.42	10.42	10.42	0.00%	0
Jul 1, 2026	10.42	10.42	10.42	10.42	+0.82%	800
Jun 30, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jun 29, 2026	10.33	10.33	10.33	10.33	-1.62%	300
Jun 26, 2026	10.50	10.50	10.50	10.50	0.00%	0
Jun 25, 2026	10.50	10.50	10.50	10.50	0.00%	0
Jun 24, 2026	10.50	10.50	10.50	10.50	0.00%	0
Jun 23, 2026	10.50	10.50	10.50	10.50	+1.55%	200
Jun 22, 2026	10.34	10.34	10.34	10.34	0.00%	100
Jun 18, 2026	10.34	10.34	10.34	10.34	0.00%	0
Jun 17, 2026	10.34	10.34	10.34	10.34	0.00%	0
Jun 16, 2026	10.34	10.34	10.34	10.34	0.00%	0
Jun 15, 2026	10.34	10.34	10.34	10.34	0.00%	0
Jun 12, 2026	10.34	10.34	10.34	10.34	0.00%	0
Jun 11, 2026	10.50	10.50	10.34	10.34	+0.10%	2.50K
Jun 10, 2026	10.99	10.99	10.33	10.33	0.00%	200
Jun 9, 2026	10.33	10.33	10.33	10.33	0.00%	0
Jun 8, 2026	10.33	10.33	10.33	10.33	-0.10%	100
Jun 5, 2026	10.34	10.34	10.34	10.34	0.00%	0
Jun 4, 2026	10.34	10.34	10.34	10.34	0.00%	0
Jun 3, 2026	10.34	10.34	10.34	10.34	0.00%	0
Jun 2, 2026	10.34	10.34	10.34	10.34	0.00%	0
Jun 1, 2026	10.34	10.34	10.34	10.34	0.00%	0
May 29, 2026	10.34	10.34	10.34	10.34	0.00%	0
May 28, 2026	10.34	10.34	10.34	10.34	0.00%	0
May 27, 2026	10.34	10.34	10.34	10.34	0.00%	0
May 26, 2026	10.34	10.34	10.34	10.34	0.00%	0
May 22, 2026	10.34	10.34	10.34	10.34	-0.10%	2.00K
May 21, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 20, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 19, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 18, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 15, 2026	10.35	10.35	10.35	10.35	0.00%	1.00K
May 14, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 13, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 12, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 11, 2026	10.34	10.35	10.34	10.35	0.00%	1.30K
May 8, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 7, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 6, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 5, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 4, 2026	10.35	10.35	10.35	10.35	0.00%	0
May 1, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 30, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 29, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 28, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 27, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 24, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 23, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 22, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 21, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 20, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 17, 2026	10.35	10.35	10.35	10.35	0.00%	200
Apr 16, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 15, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 14, 2026	10.35	10.35	10.35	10.35	0.00%	0
Apr 13, 2026	10.35	10.35	10.35	10.35	+0.29%	100
Apr 10, 2026	10.32	10.32	10.32	10.32	0.00%	0
Apr 9, 2026	10.32	10.32	10.32	10.32	0.00%	0
Apr 8, 2026	10.32	10.32	10.32	10.32	0.00%	0
Apr 7, 2026	10.32	10.32	10.32	10.32	0.00%	0
Apr 6, 2026	10.32	10.32	10.32	10.32	0.00%	0
Apr 2, 2026	10.32	10.32	10.32	10.32	0.00%	0
Apr 1, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 31, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 30, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 27, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 26, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 25, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 24, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 23, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 20, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 19, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 18, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 17, 2026	10.32	10.32	10.32	10.32	0.00%	0
Mar 16, 2026	10.32	10.32	10.32	10.32	+2.18%	100
Mar 13, 2026	10.10	10.10	10.10	10.10	0.00%	0
Mar 12, 2026	10.10	10.10	10.10	10.10	0.00%	0
Mar 11, 2026	10.10	10.10	10.10	10.10	0.00%	0
Mar 10, 2026	10.10	10.10	10.10	10.10	0.00%	0
Mar 9, 2026	10.10	10.10	10.10	10.10	-1.37%	100
Mar 6, 2026	10.24	10.24	10.24	10.24	0.00%	0
Mar 5, 2026	10.24	10.24	10.24	10.24	0.00%	0
Mar 4, 2026	10.24	10.24	10.24	10.24	0.00%	0
Mar 3, 2026	10.24	10.24	10.24	10.24	0.00%	0
Mar 2, 2026	10.24	10.24	10.24	10.24	0.00%	0
Feb 27, 2026	10.24	10.24	10.24	10.24	0.00%	0
Feb 26, 2026	10.24	10.24	10.24	10.24	0.00%	0
Feb 25, 2026	10.24	10.24	10.24	10.24	0.00%	0
Feb 24, 2026	10.24	10.24	10.24	10.24	0.00%	0
Feb 23, 2026	10.24	10.24	10.24	10.24	0.00%	2.20K
Feb 20, 2026	10.24	10.24	10.24	10.24	0.00%	0
Feb 19, 2026	10.24	10.24	10.24	10.24	0.00%	0
Feb 18, 2026	10.24	10.24	10.24	10.24	0.00%	0
Feb 17, 2026	10.24	10.24	10.24	10.24	+1.39%	100
Feb 13, 2026	10.10	10.10	10.10	10.10	0.00%	0
Feb 12, 2026	10.10	10.10	10.10	10.10	0.00%	0
Feb 11, 2026	10.10	10.10	10.10	10.10	0.00%	0
Feb 10, 2026	10.10	10.10	10.10	10.10	-0.98%	700
Feb 9, 2026	10.20	10.20	10.20	10.20	0.00%	0
Feb 6, 2026	10.20	10.20	10.20	10.20	0.00%	0
Feb 5, 2026	10.20	10.20	10.20	10.20	0.00%	0
Feb 4, 2026	10.20	10.20	10.20	10.20	0.00%	0
Feb 3, 2026	10.22	10.22	10.20	10.20	-0.20%	6.40K
Feb 2, 2026	10.22	10.22	10.22	10.22	0.00%	0
Jan 30, 2026	10.22	10.22	10.22	10.22	0.00%	0
Jan 29, 2026	10.22	10.22	10.22	10.22	0.00%	0
Jan 28, 2026	10.22	10.22	10.22	10.22	0.00%	0
Jan 27, 2026	10.22	10.22	10.22	10.22	0.00%	0
Jan 26, 2026	10.22	10.22	10.22	10.22	0.00%	0
Jan 23, 2026	10.22	10.22	10.21	10.22	+0.09%	500
Jan 22, 2026	10.20	10.21	10.20	10.21	-0.38%	400
Jan 21, 2026	10.25	10.25	10.25	10.25	0.00%	0
Jan 20, 2026	10.25	10.25	10.25	10.25	0.00%	0
Jan 16, 2026	10.25	10.25	10.25	10.25	+0.49%	100
Jan 15, 2026	10.20	10.20	10.20	10.20	0.00%	0
Jan 14, 2026	10.20	10.20	10.20	10.20	0.00%	0
Jan 13, 2026	10.20	10.20	10.20	10.20	0.00%	0
Jan 12, 2026	10.20	10.20	10.20	10.20	0.00%	0
Jan 9, 2026	10.20	10.20	10.20	10.20	0.00%	100
Jan 8, 2026	10.20	10.20	10.20	10.20	0.00%	0
Jan 7, 2026	10.20	10.20	10.20	10.20	0.00%	0
Jan 6, 2026	10.20	10.20	10.20	10.20	0.00%	0
Jan 5, 2026	10.20	10.20	10.20	10.20	+0.20%	2.00K
Jan 2, 2026	10.18	10.18	10.18	10.18	0.00%	0
Dec 31, 2025	10.18	10.18	10.18	10.18	0.00%	0
Dec 30, 2025	10.18	10.18	10.18	10.18	0.00%	300
Dec 29, 2025	10.18	10.18	10.18	10.18	0.00%	200
Dec 26, 2025	10.18	10.18	10.18	10.18	0.00%	0
Dec 24, 2025	10.18	10.18	10.18	10.18	0.00%	0
Dec 23, 2025	10.18	10.18	10.18	10.18	0.00%	100
Dec 22, 2025	10.18	10.18	10.18	10.18	0.00%	0
Dec 19, 2025	10.18	10.18	10.18	10.18	0.00%	4.00K
Dec 18, 2025	10.18	10.18	10.18	10.18	0.00%	0
Dec 17, 2025	10.18	10.18	10.18	10.18	0.00%	100
Dec 16, 2025	10.18	10.18	10.18	10.18	0.00%	0
Dec 15, 2025	10.18	10.18	10.18	10.18	0.00%	100
Dec 12, 2025	10.18	10.18	10.18	10.18	0.00%	100
Dec 11, 2025	10.18	10.18	10.18	10.18	0.00%	100
Dec 10, 2025	10.18	10.18	10.18	10.18	0.00%	0
Dec 9, 2025	10.18	10.18	10.18	10.18	0.00%	100
Dec 8, 2025	10.18	10.18	10.18	10.18	0.00%	100
Dec 5, 2025	10.18	10.18	10.18	10.18	0.00%	100
Dec 4, 2025	10.18	10.18	10.18	10.18	+0.30%	300
Dec 3, 2025	10.15	10.15	10.15	10.15	0.00%	0
Dec 2, 2025	10.15	10.15	10.15	10.15	0.00%	0
Dec 1, 2025	10.15	10.15	10.15	10.15	0.00%	0
Nov 28, 2025	10.18	10.18	10.15	10.15	-0.29%	600
Nov 26, 2025	10.18	10.18	10.18	10.18	0.00%	100
Nov 25, 2025	10.18	10.18	10.18	10.18	0.00%	100
Nov 24, 2025	10.18	10.18	10.18	10.18	-0.29%	100
Nov 21, 2025	10.21	10.21	10.21	10.21	0.00%	0
Nov 20, 2025	10.21	10.21	10.21	10.21	0.00%	0
Nov 19, 2025	10.21	10.21	10.21	10.21	0.00%	0
Nov 18, 2025	10.21	10.21	10.21	10.21	0.00%	0
Nov 17, 2025	10.21	10.21	10.21	10.21	0.00%	0
Nov 14, 2025	10.21	10.21	10.21	10.21	0.00%	0
Nov 13, 2025	10.21	10.21	10.21	10.21	0.00%	0
Nov 12, 2025	10.21	10.21	10.21	10.21	0.00%	0
Nov 11, 2025	10.21	10.21	10.21	10.21	-0.20%	400
Nov 10, 2025	10.23	10.23	10.23	10.23	0.00%	0
Nov 7, 2025	10.23	10.23	10.23	10.23	0.00%	100
Nov 6, 2025	10.23	10.23	10.23	10.23	-0.20%	100
Nov 5, 2025	10.25	10.25	10.25	10.25	+0.29%	100
Nov 4, 2025	10.22	10.22	10.22	10.22	+0.10%	100
Nov 3, 2025	10.21	10.22	10.21	10.21	-0.49%	1.10K
Oct 31, 2025	10.25	10.26	10.25	10.26	+0.49%	200
Oct 30, 2025	10.21	10.21	10.21	10.21	0.00%	100
Oct 29, 2025	10.21	10.21	10.21	10.21	0.00%	0
Oct 28, 2025	10.27	10.27	10.21	10.21	-0.10%	400
Oct 27, 2025	10.22	10.22	10.22	10.22	-0.20%	5.10K
Oct 24, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 23, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 22, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 21, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 20, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 17, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 16, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 15, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 14, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 13, 2025	10.24	10.24	10.24	10.24	0.00%	0
Oct 10, 2025	10.19	10.24	10.19	10.24	+0.59%	5.80K
Oct 9, 2025	10.18	10.18	10.18	10.18	—	0

Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the QUMSU chart for longer ranges.